DJ- Yeah the Ionic breeze works well in my theater which is approx 2400 cubic feet (not square). It takes care of about 75% of my problem, and I do not have to dust as often. Which is nice b/c not only do I have my gear in there, I also have my MR props, and Gentle Giant minibusts in there also. Even though they are all in protective acrylic cases it's still a PITA to dust.

BTW, nobody goes into my theater unless I'm there unless they like broken bones. That is what the family room is for.